Baichuo is the name of an herb, the main effect of this drug is to clear heat and detoxify the body, cool the blood and stop dysentery. It also has the function of killing worms and stopping bleeding, and is mainly used in dermatology for parasitic infections of skin diseases, in addition to skin diseases such as bleeding of skin vessels and purpura. It also has a certain therapeutic effect on diseases arising from parasitic infections, such as pubic lice, head lice, and trichomonas infections, such as infectious diseases formed by Trichomonas vaginalis and Trichomonas urethra. After the decoction of the drug, topical washing or soaking can have a therapeutic effect. For skin diseases formed by allergic purpura and stress purpura, the drug can be used with other Chinese medicines in decoction for oral administration.